/Engine/Source/Runtime/MeshDescription/Public/MeshAttributeArray.h
typedef typename [TChooseClass](API\Runtime\Core\Templates\TChooseClass)< [TIsDerivedFrom](API\Runtime\Core\Templates\TIsDerivedFrom)< [AttributeType](API\Runtime\MeshDescription\TMeshAttributesRefTypeBase\AttributeType), [FElementID](API\Runtime\MeshDescription\FElementID) >::Value, int32, [AttributeType](API\Runtime\MeshDescription\TMeshAttributesRefTypeBase\AttributeType) >::Result RealAttributeType